HB 2758 revises Texas statutes to reflect and recognize same-sex marriages and parental rights. It removes references to gender-specific marital terms such as "husband" and "wife," replacing them with gender-neutral language like "spouse." The bill also repeals Section 21.06 of the Texas Penal Code, which criminalizes homosexual conduct (a provision deemed unconstitutional by the U.S. Supreme Court in Lawrence v. Texas). Additionally, the bill updates provisions on child custody, birth certificates, and health education standards to reflect legal recognition of same-sex parents and spouses.